dynamotor
Definition
- Noun:
- An electrical machine: A "dynamotor" is a device that combines an electric motor and a generator in a single unit, typically used to convert electrical power from one voltage or current type to another (e.g., from DC to AC, or from low voltage to high voltage). It consists of a single rotating shaft with both a motor winding and a generator winding.
Usage Examples
- Noun:
- The old radio used a dynamotor to step up the battery voltage for the vacuum tubes. (A dynamotor converts low-voltage DC to higher-voltage DC.)
- In early aircraft, dynamotors were essential for powering onboard electronics from the main engine generator. (A dynamotor provides a stable power supply by combining motor and generator functions.)
Advanced Usage
- "dynamotor" in historical contexts: Dynamotors were commonly used in mid-20th-century electronics, such as portable radios and military equipment, before modern solid-state power converters became widespread.
- The vintage field radio relied on a dynamotor to generate the high voltage needed for its transmitter. (A dynamotor performed a specific power conversion task in older technology.)
Variants and Related Words
- Dynamotor (n): No common variants exist, but it is related to:
- Motor-generator (n): A broader term for a device consisting of a motor and generator mechanically coupled; a dynamotor is a specific type of motor-generator where both are on the same shaft.
- A motor-generator set can be larger than a dynamotor, often with separate machines. (A dynamotor is a compact version of this.)
Synonyms
- Motor-generator: A device that converts electrical power using a motor and generator (often used interchangeably, though a dynamotor is a subtype).
- Rotary converter: A similar machine that changes AC to DC or vice versa, but typically uses a single armature winding.
Related Idioms
- There are no common idioms or phrasal verbs associated with "dynamotor," as it is a technical term.